Смысл:
act drop 
act drop[ʹækt͵drɒp]
театр.
<Í> занавес, опускаемый между действиями или сценами (тж. act drop curtain)
drop Идиома
a drop in the bucket
a small part, a tiny piece, the tip of the iceberg This donation is only a drop in the bucket, but it is appreciated.
at the drop of a hat
without waiting, immediately, promptly He will stop working and help you at the drop of a hat if you ask him politely.
bottom fall out/drop out
to fall below an earlier lowest price When the bottom fell out of the coffee market many companies had to stop doing business.
drop
stop taking a subject, withdraw, drop out You wouldn't drop English! It's the key to other subjects.
drop a bundle
lose money by gambling, lose your shirt I dropped a bundle at the track last night. I lost every bet.
drop a hint
suggest, give a sign When he was hungry, he'd drop a hint, like point at the fridge.
drop a line
write a letter, send a postcard Be sure to drop us a line from Paris. Tell us about your trip.
drop a log
have a bowel movement, take a shit What a smell! Open a window after you drop a log, eh.
drop a name/drop names
pretend you know famous people, name dropper He was dropping names at the interview - Klein, Clinton etc.
drop back
move or step backwards, retreat During the hike his foot began to get sore so he decided to drop back and rest for awhile.
drop behind
run further behind, lose ground Our party has dropped behind in the polls. We're in second place.
drop by
to visit someone or somewhere He dropped by after work for a drink.
drop by the wayside
give up or fail before the finish Many runners dropped by the wayside as the marathon continued.
drop charges
withdraw complaints, not press charges I realized it was an accident, so I dropped the charges.
Drop dead!
go away and be quiet, stop bothering someone I told him to drop dead when he came into my room and now he is angry at me.
drop dead
you are badly mistaken, go to hell If you think I'm getting on that motorcycle, you can drop dead.
drop her/him
leave her, not date her anymore, tube her (see tube him) She wouldn't quit smoking, so I dropped her - told her it was off.
drop him like a hot potato
leave him, not associate with him If she finds out you're not rich, she'll drop you like a hot potato.
drop-in
visitor, one who drops in He was a drop-in at the Seniors' Centre. He liked to go there.
drop in the bucket
(See a drop in the bucket)
drop it
stop talking about it, do not say any more When I mentioned his accident, he told me to drop it.
drop like flies
dying in great numbers, falling dead on the floor When a pox infected the tribe, people were dropping like flies.
drop off
go to sleep, doze, fall asleep I only dropped off for a second. I was awake for the news.
drop out
quit, stop attending I have decided not to drop out of school. I'm going to continue.
drop out (of school)
quit school or a course of some kind She dropped out of the class after three months.
drop out of sight
disappear, not be seen for awhile After the scandal, he dropped out of sight. I haven't seen him.
drop over
visit, come and talk Our friends dropped over last night for a cup of coffee.
drop (someone) a line
write or mail a note or letter to someone She promised that she would drop me a line when she gets to Singapore.
drop someone a line
write to someone.
drop your drawers
take your pants down, remove your shorts Don't you hate it when you have to drop your drawers for a nurse?
drop your gloves (hockey)
remove your gloves to fight with your fists Don't drop your gloves in this game. There's no fighting.
get the drop on
be quicker to start, get the jump on Stu's very quick. In faceoffs, he gets the drop on his opponents.
name dropper
one who implies famous people are his friends What a name dropper! He spoke of Gordon Lightfoot as his friend.
so quiet you can hear a pin drop
very quiet, very still "The teacher said, ""Class, try to be so quiet you can hear a pin drop."""
touch a drop
drink a drop of liquor, have a drink of liquor Steve was a heavy drinker, but he hasn't touched a drop in years.
wait for the other shoe to drop
wait for the final step, wait for the conclusion, leave me hanging He said he'd make two changes. First, he resigned. I'm waiting for the other shoe to drop.
drop a clanger
to make an obvious mistake
drop a dime
to inform on someone to legal authorities; i.e., to rat someone out to the police:"Tom is a punk, because he dropped a dime on Jerry about those tags"
drop anchor
to defecate:"Where's the can? I gotta drop anchor"
drop science
to demonstrate wisdom or skill
drop teas
to have sex; usually said when a guy is talking to (or about) a girl:"Hey John, drop teas with her!!!"
drop the flag
to quit the gang
drop the kids off at the pool
to defecate:"Yo slice, I gotta drop the kids off at the pool. I'll be back in a minute"
drop across
1．pay a causal visit；come across to visit串门；随便拜访
Mrs Barton lives on the other side of the road．She often drops across to have coffee with us．巴顿太太住在马路那边。她经常来串门和我们一起喝咖啡。
On my way back from school I'll drop across at my friend's home．放学回来的路上，我要顺便去我朋友家看看。
2．bring带来
I'll drop the book across to you this evening．今晚我把那本书给你带来。
drop away
get away；become less走掉；减少
It was a tedious lecture．The listeners dropped away one by one．演讲冗长乏味，听众一个个都走掉了。
The attendance has dropped away in recent months．最近几个月的出勤率下降了。
drop down
1．descend or fall quickly下降
The temperature has dropped down．气温已经下降了。
She dropped down into an armchair，exhausted．他精疲力尽，一下倒在扶手椅里。
2．lower oneself quickly俯身
The peasants dropped down on their knees in front of the temple．那些农民在寺庙前跪了下来。
drop in
visit unexpectedly；pay a visit to sb．without telling him beforehand 顺便拜访
Some friends dropped in to tea．几位朋友顺便来喝茶。
We were just sitting down to dinner when my friend dropped in．我们刚坐下吃晚饭，突然我朋友来了。
drop in on
call on or visit sb．unexpectedly顺便拜访
If you are ever in our neighbourhood，be sure to drop in on us．如果你到我们这个地区来，一定要来我们这儿玩玩。
Why don't we drop in on her and find out how she is doing？我们何不进去坐坐，顺便看看她干得怎么样？
drop (sb) a line
write briefly to sb．给（某人）写封短信
As soon as I get to the United States，I'll drop you a line．一到美国，我就给你写封短信来。
drop to one's knees
kneel down跪下
The man dropped to his knees，begging for mercy．那人跪了下来，请求宽恕。